DE1947727C3 - Thread feeder - Google Patents

Description

are and without the latter superimposing one another.
55 Claims 2 to 7 contain advantageous features

■ Characteristics of the invention.

An example embodiment of the invention is described below with reference to the drawing, in the

The invention relates to a thread feeder with 60 F i g. 1 shows a longitudinal section through the storage roll according to the invention shows for textile machines, especially for moderate thread feeders;

Knitting and warp knitting machines, with a stationary F i g. FIG. 2 shows a section along the line II-II from FIG

Winding body on which the grain from a coil- Fig. 1.

Ending thread by means of a revolving, driven- F i g. 1 shows an engine 10 to which a geared unit is driven Arm can be wound up and, if necessary, from the housing 14 is flanged.

Machine is removable. The engine has a hollow drive shaft 12

Such a thread feeder is provided by the French, which at its lower end 20 with a

see patent 1,570,969 known. Is provided thread not shown in detail for transport. On the

Pnde 20 of the drive shaft 12 is located a circular "Heibe 22 and the held by means of two nuts 24. A drive shaft 12 is retellbar in the axial direction. Through the hollow drive shaft 12, yarn or thread 18 is passed, which ^{comes from a non-Cl} "eieten bobbin. The thread 18 enters the drive shaft 12 at the end 11 and at the end 20 whereupon it moves radially outwards approximately up to the circumference the disc is guided 22nd the disc 22 has "its periphery an upwardly verlaufenen the collar is provided with a thread eye 28 axially 26, a rch ι which the thread is pulled through the eighteenth Bearing bolts 36, which run parallel to the drive shaft 12, are fastened in a Qt-rnwand 38 of the gear housing 14, as shown in FIG. Bearing pins 36 can never be pressed into the corresponding Bohnopn of the end wall 38. You can - * £ * in any other suitable manner, for example connectedness with Se a thread to the end wall ^38:; Be -am In the illustrated embodiment At Laeerbolzen 36 are provided which concentrically Λ in eleichmäßigen angular intervals on a circle L, the axis of the drive shaft 12 ώϊ Mif each of the bearing pin 36 is a langaSreckte substantially cylindrical sleeve 16, £ ta sitting alignment by a on the lower end 37Tedes bearing pin 36 seated retaining ring 4 'is Keep the bushes 16 sit with radiafrn ^S Spie auTden bearing pin 36 so that they Sht relaUv can rotate about the latter. The sleeves 16 can be made of metal or a fabric. If necessary, a lubricating groove can be placed between the S bushes and their bearing pins. The bushes can easily

Federal 26 of the disc 22 something, for. B. a few meters, over the lower edge 34 of the sleeves 16. The upper side 23 of the disc 22 is spaced apart from the ends 37 of the bearing bolts 36, so that the disk 22 does not hit the bearing bolts when it rotates 36 brushes. Furthermore, between the edge 34 of the sleeves 16 and the inside 27 of the collar 26 is a There is a gap of a few millimeters.

On the topmost turn 58 of the thread 18 wound onto the cans 16, a thin plastic plate 60 is placed, which with corresponding OH openings for the passage of the sleeves 16 and the drive shaft 12 is provided. On the board 60 is a permanent magnet 62 attached, which serves to two axially spaced apart To actuate magnetic contacts 66 and 68, which at a substantially parallel to the drive shaft 12 extending bolts 64 are attached. The bolt 64 is fastened to the end wall 38 of the gear housing 14.

The magnetic contacts 66 and 68 are used to switch the motor 10 on and off.

The following is the mode of action of the invention Fadenzubringers described: The thread 18, coming from the thread spool, from End 11 to end 20 through the hollow Antnebswelle 12, then radially outwards and from below guided upward through the thread eyelet 28 in the collar 26 of the disk 22. From there the thread becomes evenly wrapped around the sleeves 16 so that it is helical from, bottom to pushes up to the topmost turn 58 from where from the thread 18 over the outer circumference of the Disk 22, as in FIG. 1 be! 72 is shown, after un-

Esa JoSÄf »^ ^ Vr ^

S em toothed intermediate gear 54 in engagement, the turn 58. The F ^a _K ^den ^ ^nd «g, _{de is} rotatably mounted on Snem bearing pin 56, the turn, etc. whereby the number of turns on the end wall 38 of the gear housing and thus turns also the height of the swell

rir: _t * _{t;. t} 45 stapeis decreases.

and the intermediate gear 54 to one of the gears 50 contact 68 through the. on plan 60

is transmitted. The gears 50 are, as likewise connected ₅ o th permanent magnet 62 and ™

if F fg 2 shows that they are all engaged with one another, motor 10 is switched on. After.the E «switch

ο that when one of the gears 50 by the Zwi- of the motor 10 rotates the ^ ebsweHe ₂ ^ i

₅ ? Ä ^ ^ fS Slent

alternating etn ^S gear 50 clockwise and the SSTSS BÄ
Turn the speed of 700 rpm.

mmm

The windings only exert an axial movement, but do not migrate around the circumference. The winding up of the thread on the sleeves 16 is continued until the permanent magnet 62 the upper Magnetic contact 66 switches, whereby the motor 10 is switched off. The speed of the engine and thus the winding speed of the thread is chosen so that even with the fastest running of the textile machine the thread feeder delivers more thread than is withdrawn. When the engine 10 is switched off is, move the sinker 60 and the permanent magnet 62 as a result of the decreasing thread pile down again until the lower magnetic contact 68 is reached and the motor is switched on again will. If only one drive is used for all thread feeders of a machine, then the former are expediently driven by magnetic clutches that are operated by magnetic contacts 66 and 68 can be switched on and off.

The device according to the invention is suitable for all types of threads, such as natural, synthetic or semi-synthetic threads, but also for elastic or mineral threads. Instead of eight cans, a different number can be used.

As a result of the movement of the sleeves 16 and as a result of the very little friction between the thread and the surface of the bushes can compensate for tension fluctuations in the thread coming from the bobbin as this can move a little in the circumferential direction on the smooth bushing. This has the advantage that the thread with

ίο can always run the same voltage.

In the embodiment shown, the thread is on the widening head 30 of the Sleeves 16 wound. As a result of the bevel, the thread searches inwards and therefore also forwards to ratchet up, which supports the axial movement of the thread windings upwards and makes room for the subsequent turn is created. However, the device according to the invention also works without this enlarged head 30 is satisfactory.

ao Instead of the hollow bushes 16, fully cylindrical round rods can be used, which are shown in are stored in a suitable manner in the transmission housing 14.

For this purpose 2 sheets of drawings

Claims (7)

of the thread windings on the bobbin is provided a swashplate with fingers. Grab slots in the circumference of the bobbin and 1. Fadenzubringer with storage winding for Tex- looking for thread windings downward zi.Press, tilmaschinen, especially for knitting and warp knitting, with a stationary winding body speaking thread feeder is through the USA.-Paper , to which the patent 3 455 341 coming from a reel is known. .
With this thread feeder, the thread rolls can be wound up and, if necessary, displaced from the thread on the winding body, can be pulled off, characterized in that the thread to be wound on one of the marks that the Winding body in the form of a cone attached to the winding body slides off and the thread turns are pushed in front of it by a plurality of spaced apart from one another. These ordered, known thread feeders, rotatable in opposite directions to one another, with stationary wikim, round rod bodies arranged essentially in parallel, offer compared to thread feeders with ben (bushes 16). is revolving bobbin as it is z. B. by the 2. thread feeder according to claim 1. characterized by Italian patent 795 9d2I are known, the characterized in that the round bars in the form of an advantage that the foal fed to the text machine, elongated bushings (16) are formed which do not receive any additional twisting, ts are, the rotatably mounted on the bearing pin (36) does not succeed, however, one on top of the other and one on top of the other are, which in turn on an end wall (38) of a 20 pushing the individual Fadenwindun gear housing (14) are attached. gen to avoid. When pulling the thread can 3. thread feeder according to claim 1 or 2, that this, in particular with hairy yarns, too unthrough characterized that the round rods (book desires «lead stress peaks, whereby the sen 16) is impaired in their quality of the goods facing the thread inlet. End of a widened head (30) for the top. To remedy this difficulty, was also run of the thread (18) own. already a thread feeder with stationary winding 4. The thread feeder is pre-beaten after one of the bodies (German Offenlegungsschrift Claims 1 to 3, characterized in that the 1 942 062), in which the thread turns through Round bars (bushes 16) in the feed direction of the several spokes wound on the circumference of the bobbin are conical. 30 moderately distributed slats can be pushed further, 5. Yarn feeder after one of the other has an oscillating axial and radial movement Claims 1 to 4, characterized in that the perform. This thread feeder is in its on-round rods (Bushes 16) on a concentric construction relatively complicated. see circle at a distance from the axis of the wik- The invention is now based on the object kelkörpers and at equal angular intervals of 35 a thread feeder of the type mentioned above are arranged to each other. create in which the individual thread turns 6. The thread feeder can be wound up after one of the previous winding bodies, pending claims, characterized in that without them being pushed over one another and each Interfere with the round rod (sleeve 16) on its drive side. side end equipped with a gear (50) 40. According to the invention, this is achieved in that is tet, all of which are in engagement with one another of the winding bodies in the form of a plurality of im hen that also on the drive shaft (12) a distance from each other arranged, in opposite directions Gear (52) is attached, through which a mutually rotatable, essentially parallel Intermediate wheel (54) is formed at least one of the gears arranged round rods. (50) is drivable. 45 By rotating the rods in opposite directions, 7. Yarn feeder after one of the previous through the one outwardly stationary bobbin pending claims, wherein the arm arises in the form of a friction between the on the Disc with a thread to be wound up with a thread eyelet and the upper collar is formed, characterized in that the area of the round bars is reduced, so that winding that the collar (26) with its edge (32) over 50 turns are wound onto the bobbin Edge (34) of the round rods (bushes 16) can pass over without special facilities for the stands. axial advance of the thread turns required